Mattress-roll-forming machine.



J. W. DROLL.

MATTRESS ROLL FORMLNG MACHINE.

, APPLICATION FILED MAR- i5\ 191]. I

1 ,300,1 39.. Patented Apr. 8,1919.

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MAFTRESS ROLL FORMING MACHINE.

APPLICATION FILED MAR. 15. I917- Patented Apr. 8,

1 SHEETS-SHEET in J. W. DROLL.

MATTRESS ROLL FORMING MACHINE.

APPUCATION FILED MAR. 15. 1912- 1,300,1 39. Patented Apr. 8, 1919.

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51:: g w W J..W. DROLL.

MATTRESS ROLL FORMING MACHINE.

APPLICATION FILED MAR- 15. I911.

Patented Apr. 8,1919.

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111's AFT J. W. DROLL. MATTRESS ROLL FORMING MACHINE.

APPLICATION FILED MAR-15.1917. I. ,300,1 39, Patented Apr. 8,1919.

7 SHEETS-SHEET 5.

J. W. DROLL.

MATTRESS ROLL FORMING MACHINE.

APPLICATION FILED MAR-15.1917.

1,300,1 39, Patented Apr. 8, 1919.

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J. W. DROLL.

MATTRESS ROLL FORMING MACHINE.

APPLICATION FILED MAR. 15. I917.

Patented Apr. 8,1919.

7SHEETSSHEET 7.

His A7 7 JOSEPH W. DRQLL, OF OAKLAND, CALIFORNIA.

MATTRESSROLIFFORMING MACHINE.

Specification of Letters Patent.

Patented A r. 8, 1919.

Application filed Mair-ch 15; 1917. Serial No. 156,467.

To all whom it may concern:

-Be it known that I, Josnrn W. DROLL,

a citizen of the United States, residing inthe city of Oakland, in the county of Alameda and State of California, have invented a new and useful Improvement in Mattress- Roll-Forming Machines, of which the foltable and engaging the mattress, the roller lowing is a specification.

My invention relates to roll forming'machines for mattresses and the like wherein a pair of roll formingfingers operate inconjunction with sewing means to secure the roll when formed; and the objects of my invention are- First, to provide an improved roll form- 1 ing machine for mattresses and the like;

Second, to provide improved means for temporarily retaining the formed roll;

Third, to provide improved means for permanently ecuring the formed roll;

Fourth, to provide improved means to enter a mattress and draw the stufling or filling thereof firmly against the sides or ticking thereofwhile the roll is being formed;

Fifth, to provide means for moving the roll securing means forward while the'roll forming means are in operation;

Sixth, to provide improved means for forming and securing a roll on the corner of a mattress that may be adjusted relatively to the said mattress; and

Seventh, to moving the ent re machine around the edge or periphery of a mattress to form and secure rolls thereon.

I accomplish these several objects by means of'the preferred form of the device disclosed in the drawings forming a part of the present specification, wherein like characters of reference are used to designate similar parts throughout the said. specification and drawings, and in which-- Figure 1 is a vertical sectional view of a table disclosing a mattress in section thereon and the roll forming machine applied to the handles being removed.

Fig. 2 is a broken side elevation of Fig. 1..

Fig. 3 is an enlarged front elevation of the roll forming and securing means shown in vertical position withthe roll retaining means engaging and the roll forming means disengaging the mattress. I Fig; 4 is a view similarto Fig. 3 but disclosing the roll forming means in operative Fig. 6 is a view similar to Fig. 5 but on a smaller scale disclosing the 'parts in another position. A

Fig. 7 is a broken Plan view of the mechanism for moving the machine forwardxat regular intervals;

Fig. 8 is a broken plan view of onev corner of the mattress supporting table disclosing the manner in which the machine travels around the corners of said table; and

Fig 9 is a broken plan view of the table disclosing the arrangement of the support-.

ing rails. r 7

Referring to the drawings, the numeral 1 is used to desigpate a suitable table having side-boards 2 thereon upon which are mounted a supporting rail 3- and a rack 4. A

guide channel 6 i mounted onthe under side of the table 1 and near the edge thereof.

A suitable supporting frame 7 is pro-- vided with a'. pair of supporting rollers 8 which rest and ride upon the rail 3. A guide roller 9 engages the guide channel 6 to aline :the machine with the work in a .ma-nner provlde improved means for pivotally mounted bracket 12.

A suitable motor 14 is mounted upon a sh elf'or horizontal extension 16 of the frame 7 and the motor shaft 17 is provided with a worm 18 meshing-with and driving a worm gear 19 on a vertically disposed shaft 21 rotatably mounted within the frame 7.

The shaft 21 is provided with a cam 22 to operate a lever 23 pivotally mountedupon the frame 7. One end. of the lever 23 extends through an aperture 24; in the frame 7.

- and is provided with a pawl 26 which isv arranged to engage the rack 4 on the side board 2 of the table 1 whereby the frame 7 may be moved forward equal distances at regular intervals, the purpose of which wil h reinafter be more fully set forth.. P

The frame 7 is also provided with a sector 28- having slotsor grooves 29 therein to engage and retain a lever secured to a super-frame 31 whereby the angle of the frame 31 may be altered relatively to the position of'ihe frame 7 and table 1.

A bevel gear 32 is rotatably mounted a upon the frame 31 and is connected with the lever or arm 42 which is operated by means vof a face cam 43 secured to the surface cam 36.

Slidably mounted upon a square rod46,

secured to the frame 31, is a T-head 47 having pivotally mounted therein the roll forming mechanism .comprising a pair of arouate arms 48 terminating in needle fingers.

49 whichare arranged toenter the top and sides adjacent the corners of a mattress 52 and forcethe stufling 53 adjacent the corner into a roll 54, asdisclosed in Figs. 1, 3 and 4 of the drawings. 7

The T-head 47 is provided with an upwardly extending rod or standard 56 whose upper end is slidably engaged by a groove or slot 57 in a strut 58 formed integral with the frame 31. i

A sleeve 61 is slidably mounted upon the standard 56 and is connected by means of suitable links 62 to the arcuate arms 48. A spring 63 is interposed between the sleeve 61 and the T-head 47 to normally raise the sleeve 61 and withdraw the roll forming mechanism from the mattress 52 as dis-L closed in Fig. 3 of the. drawings. Y

The sleeve 61 is also provided with a'pin- 66 which is operatively engaged by a cam 67 on the lower endof an arm 68 rigidl secured to the sewing needle arm or lever 3 by means of a counter-shaft 69 pivotally mounted Within the. top of the frame 31 as at 38. i g

Roll retaining means are provided in the form of suitable rollers 71 rotatably mount-v ed: upon the ends of rods 72 pivotally mountedupon a bar or head 73 secured to the square rod 46 in advance of the roll forming arms 48 said} rods terminating in suitable handles 76 by means of which the said rods 72 may be partially rotated on their pivotal points against the "tension of tress 52.

springs 74 to separate the rollers 71 to release or disengage same from the mat- An arcuate guide frame77 is rigidly secured to the lower end of the frame 31 and is arranged to partially surround the formed roll 54 asdisclosed in Fig. 3 of the drawings. The guide frame 77 is provided with an aperture 78 through which tlgread is drawn by the needle 39 from a suita le spool or drum 81, to form a loop to be engaged by the shuttle 41 to form what is commonly known as the lockstitch to permanently secure the formed roll 54.

The retaining rolls 71 are rovided on the periphery thereof withnee es 82 to effectively engage and retain the ticking of the mattress 52 and thereby effectively retain the formed roll 54.

The T-head 47 is slidably mounted upon 'the square rod 46 so that the arms 48 may retaint-heir engagement with the formed roll 54 while the machine or frame 31 carrying the sewing mechanism is moved forward to make the next stitch. The pin 66 is slightly shorter than the distance of the forward movement so that when said forward movement is completed the pin 66 has become disengaged from the cam 67 and the spring 63 is then free to mqve the sleeve 61 upward to disengage the roll forming means or arms 48 and needles 49 thereon from the roll 54. c

A spring 84 is mounted upon the square rod 46 and interposed between the guide 77 and the T-head 47 and arranged to move the said T-head and roll forming means mounted thereon, forward. But when the back face of the cam 67 as disclosed in'Fig.

5. of the drawings, and in dotted lines in Fig. 4 of the drawings.

In order to assist in forming the loop made by the needle 39 I have provided an arcuate channel 87 as disclosed in Fig.3 of the drawings. This areuate channel 87 lies under the path of the needle 39 and frictionally engages the thread on'the under side of the nealle 39 to frictionally engage the under thread when the needle 39 is withdrawn. This frictional engagement will cause the loop to be formed on theupper sideof the needle'39 and in front of the shuttle 41 as-disclosed in dotted lines .in

well known lock The function of the machine is to operate the roll forming means to engage the mattress 52 and form a roll thereon and to retain said roll forming means in engagement with the mattress while the entire frame 31 moves forward or toward said roll forming means and stitches the roll so The posltion of the frame 31, and also the roll forming and sewing means thereon, is adjusted relatively to the frame 7 and mattress 52 by means of the lever 30.

The mattress 52 is then adjusted relatively to the roll forming means so that the needles i9 will penetrate the ticking during their descent.

The roll retainingrolls 71 are moved out-v ward against the tension of the springs 74 by means of the handles 76 and then released to permit the needles to engage the ticking and partially form a roll.

By means of the pin 66 the roll forming fingers or arms 48 and needles 49 connected thereto are operated to enter the mattress engage and gather the stuffing 53 and form the same into a roll 5i as disclosed in Figs. 1 and i of the drawings.

By starting the motor the cam 22 on the drive shaft 21 operates the lever 23 and pawl 26 pivotally mounted thereon to engage the rack -l and thereby move the machine and sewing mechanism forward toward the roll forming means, said means, being slidably mounted. meanwhile retaining engagement with the mattress.

The continued rotation of the drive shaft 21 will rotate the cam 36 and cause the needle 39 to penetrate the mattress and operating in conjunction with the shuttle 41 form a lock stitch to ermanently secure the formed roll.

As the needle 39 is withdrawn from the formed roll 5i the cam 67 engages the pin 66 and depresses the sleeve 61thereby operating the roll forming arms 18 and needles 49 to again enter the mattress 52 and form a roll in advance of the last formed roll. As the needle 39 is entirely withdrawn the cam 22 on the shaft '21 operates to move the machine and sewing mechanism forward toward the roll forming means while said means is retaining its engaging relation with the mattress.

When the cam 67 leaves or releases the pin 66 the spring 63 disengages the roll forming means from the mattress and the spring 8-1 moves said roll forming means forward with the frontjor free end of the pin 66 against or abutting the back face of the cam '67 until said cam is moved to the position shown in Fig. 3 ofthe drawings when the 70 spring 8-.t will complete the movement and again move the pin 66 under the face of said cam 67.

The above process is repeated, the roll forming means engaging the mattress' to form the roll and sliding upon the square rod *6 while the machine and sewing means move forward to secure by stitching the formed roll, the retaining rolls 71 meanwhile temporarily retaining the formed roll, until a roll is formed permanently along the entire side of the mattress.

In Figs. 8 and 9 I have illustrated the arrangement of the supporting rails 3 and guidechannels 6 whereby the machine may traverse the entire periphery of the table 1 and the mattress 52 thereon thereby forming a continuous roll around the entire periphery of said mattress without disengaging the machine from the mattress or interrupting the stitching.-

As the frame 7 travels around the curved corner of the table 1 the roll forming means are held to the working line or center of the roll to be formed by means of a roller 9 rotatably mounted upon the frame 7 and engaging the channel 6.

The rollers 11 pivotally mounted to the frame 7 by means of the arms or levers 1 2 serve to retain the frame 7 in an upright position while said frame is traveling either around corners of the table or along the straight sides thereof,

\Vhen the roll has been formed completely around the edge or upper corner of.the mattress 52 the machine is moved slightly forward to withdraw the needle 39 and also cause the cam 67 to release the pin 66.

By pressing the handles 76 together against the tension of the spring 74 the re- I10 taining rollers will be disengaged from the mattress and by breaking the threads from the shuttle 41 and needle 39, the mattress may be disconnected from the machine and turned over to repeat the process by forming 1 a roll on the opposite corner thereof.

It is obvious from the foregoing that I have provided an improved mattress forming machine adapted to form a roll 'on the edge of the mattress or the like, temporarily 12 retain the formed roll by means of the rewithin-thescope of my invention. 3

.retain the formed roll; a suitable stitching needle to penetrate the roll at, its junction with the mattress; means for withdrawing .the needle and operating the roll forming means simultaneously; and means for moving the needle and retaining rollers forward the length of one stitch while the roll form mg means are engaging the roll.

2. A mattress roll forming machine comprislng a pair of roll forming fingers to penetrate the topand sides of a mattress adjacent the corner thereof and form a roll.

r on said corner; a pair of retaining rollers to temporarily retain the formed roll a suitable sewing mechanism to stitch the roll at its function with the mattress; means for withdrawing the stitching mechanism and operatmg the roll forming fingers simultaneously; and means for moving the sewing mechanism the length of one stitch aftereach stitch is made.

3. A mattress roll forming machine comprising a suitable frame; roll forming means slidably mounted within the frame to form a roll on the corners of. a mattress or the like; means for temporarily retaining the formed roll; suitable sewing mechanism to sew the sides and top of the mattress together at the junction of the roll with the mattress; means for moving the sewing mechanism forward a distance equal to the length of one stitch while the roll forming mechanism is engaging the mattress; and

. means for releasing and moving the roll forming fingers forward during the operation of the sewing mechanism.

4. A mattress roll forming machine comprising a suitable frame; a pair of roll formi ing fingers pivotally and slidably mounted upon the frame; meansfor temporarily retaining the roll; stitching mechanism to follow the retaining meansand stitch the roll at its junction w1th the mattress; means for. moving the stitching mechanism forward .4 the length of one stitch while the fingers are engaging the roll; and means for releasing theroll retaining means from the-mattress.

5. A mattress roll forming machine comprising a suitable supporting frame; a sec- 0nd frame pivotally mounted upon the supporting frame; means for securing the second mentioned frame at various angles relatively to the mattress; roll forming means slidably mounted upon the frame to form a roll on the corners' of a mattress or the like;

- roll retaining means; suitable sewing mechanism mounted within the frame to sew the mattress mounted at the edge of the table and ar-- roll at its junction with the mattress; means for operating the sewing mechanism and roll forming means alternately; and means for moving the supporting frame forward at regular intervals while the sewing mechanism is disengaged from the mattress, the slidable roll forming means meanwhile engaging the formed roll and releasing same when the machine has completed its forward movement.

.6. A mattress roll forming mechanism comprising a suitable table to support a a supporting frame slidably ranged to traverse the entire periphery of said tables; a second frame pivotally mounted upon the first mentioned frame; means for securing the second mentioned frame at various angles to the table; roll forming fingers slidably mounted upon the second mentioned frame; suitable rollers to retain the formed roll; suitable sewing mechanism to sew the roll at its junction with the mattress; driving means for operating the sewing, mechanism; means operatively connected to the driving means for moving the machine forward along the. edge of the table at regular intervals while the sewing mechanism is withdrawn from the mattress roll and while the roll forming fingers are engaging the said roll; and means operatively connected with the sewing mechanism driving means to operate the roll forming fingers when the sewing mechanism is withdrawn and to release said fingers after the machine has moved forward at the completion of each forward movement.

7. A mattress roll forming mechanism comprising a suitable table to support a mattress; a supporting frame slidably mounted at the edge of the table and arranged to traverse the entire periphery of said table;

a second frame pivotally mounted upon the first mentioned frame; means for securing the second mentioned frame at various angles to the table; roll forming fingers slidably mounted upon the second 'mentioned frame; suitable rollers to retain the formed roll;suitable sewing mechanism to sew the roll at its junction with the mattress; driving means for operating the sewing mechanism; means operatively connected to the driving means for moving the machine forward along the edge of the table at regular intervals while the sewing mechanism is withdrawn from the mattress roll and while the roll forming fingers are engaging the said roll; means operatively connected with the sewlng mechanlsm dI'lVlIlg means to opcrate the roll forming fingers when the sewing mechanism. is withdrawn and to release said fingers after the'machine has moved forward at the completion of each forward movement; and means for moving the fingers forward when released.

8. A mattress roll forming machine comprising a suitable table to support a mattress; a supporting frame slidably mounted at the edges of the table and arranged to traverse the entire periphery of said table; a second frame pivotally mounted upon the first mentioned frame; means for securing the second mentioned frame at various angles relat-ivelyto the table; a pair of roll fingers as soon as said forward movement is forming fingers slidably mounted upon the second mentioned frame to engage surfaces of the mattress ad acent the corners thereof and to form a roll on said corners; suitable rolls to engage and retain the roll formed by the fingers; means for releasing the rolls from the mattress; a suitable sewing mechanism mounted within the second mentioned frame to sew the formed roll at its junction with the mattress and thereby permanently said fingers with the mattress while the'machine is moving forward and to release said completed.

9. A. mattress rollforming machine com-' prising a suitable table to support a mattress; a supporting frame slidably mounted at the edges of the table and arranged to traverse the entire periphery of said table;

a second frame pivotally mounted upon the first mentioned frame; means for securing the second mentioned frame at various angles relatively to the table; a pair of roll forming fingers slidably mounted upon the second mentioned frame to engage surfaces of the mattress adjacent the corners thereof and to form a roll on said corners; suitable .rolls to engage and retain the roll formed by the fingers; means for releasing the rolls from the mattress; a suitable sewing mechanism mounted within the second mentioned frame to sew the formed roll, at its junction f with the mattress and thereby permanently secure said roll; means for moving the machine at regular intervals along the ed e' of the table and around the corners thereo driving means to operate the sewing mechanism; a suitable cam secured to the sewing mechanism driving means to operate the roll forming fingers when the sewing mechanism is withdrawn from the mattress and roll and to retain the engagement ofsaid fingers with the mattress while-the machine is moving forward and to release said fingers as soon as said forward movement is completed; and means for movingthe roll forming fingers forward when released from the mattress.

10. The combination with a mattress roll forming machine of a pair of fingers to enter the said mattress, gather the shifting therein into a corner of the mattress and thereby form a roll on the said corner;

means for sewing the formed roll; means for moving the sewing means forward toward the roll forming means while said roll forming means is in engaging relation with th mattress; and means for retaining the engaging relation of the roll forming means with the mattress while the sewing means is moving toward said roll forming means.

, 11. The combination with a mattress roll forming machine of a pair of fingers to enter said mattress, gather the stufling therein into a corner of the mattress and thereby form a roll on the said corner; means for sewing the formed roll; means for moving the sewing means forward toward the roll forming means while said roll forming means is in engaging relation with the mattress; means for retaining the engaging re? lation of the roll forming means with the mattress while the sewing means is moving toward said roll forming means; and for releasing the roll forming means from the mattress and moving same forward at the completion of the forward movement of the sewing means.

In witness whereof I hereunto set my signature.

JOSEPH w. DROLL. 

